Yeonji Dong, Jeonghae, Jeonbuk, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Yeonji Dong, Jeonghae, Jeonbuk, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 34 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Sep - 19th Sep 2025
Yeonji Dong, Jeonghae, Jeonbuk, South Korea
6 AM18th Sep 2025
6 PM
5 AM19th Sep 2025
AQI
AQI
55AQI
34AQI
In the last 24 hours,
Yeonji Dong's AQI reached its highest point of 55 at 10 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Yeonji Dong, Jeonghae, Jeonbuk, South Korea
27°C23/33°C
27°C23/32°C
27°C24/31°C
27°C23/32°C
27°C23/33°C
27°C24/32°C
26°C23/30°C
26°C23/31°C
26°C22/32°C
27°C24/31°C
26°C23/32°C
26°C23/31°C
26°C23/32°C
24°C22/28°C
25°C21/32°C
25°C23/29°C
26°C22/30°C
27°C23/31°C
25°C23/28°C
23°C20/28°C
20°C19/22°C
23°C20/28°C
23°C19/29°C
23°C21/28°C
25°C22/28°C
24°C21/28°C
24°C21/27°C
25°C21/30°C
24°C21/27°C
--°C/°C
--°C/°C
45AQI
41AQI
45AQI
41AQI
2025 Days Vs Air Quality
Yeonji Dong, Jeonghae, Jeonbuk, South Korea
36%
94
61%
159
3%
7
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 261 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Yeonji Dong, Jeonghae, Jeonbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
58AQI
51AQI
52AQI
59AQI
75AQI
44AQI
58AQI
37AQI
53AQI
53AQI
66AQI
71AQI
93AQI
53AQI
66AQI
66AQI
74AQI
66AQI
98AQI
118AQI
103AQI
110AQI
94AQI
80AQI
52AQI
64AQI
42AQI
50AQI
52AQI
54AQI
66AQI
82AQI
51AQI
47AQI
44AQI
46AQI
40AQI
40AQI
42AQI
52AQI
60AQI
55AQI
44AQI
64AQI
51AQI
94AQI
51AQI
58AQI
45AQI
49AQI
49AQI
53AQI
48AQI
49AQI
47AQI
68AQI
58AQI
61AQI
87AQI
66AQI
51AQI
43AQI
35AQI
66AQI
70AQI
74AQI
93AQI
82AQI
91AQI
74AQI
75AQI
80AQI
49AQI
67AQI
61AQI
79AQI
79AQI
87AQI
94AQI
108AQI
112AQI
106AQI
129AQI
88AQI
89AQI
62AQI
49AQI
47AQI
63AQI
74AQI
75AQI
82AQI
78AQI
70AQI
64AQI
66AQI
74AQI
67AQI
77AQI
80AQI
62AQI
64AQI
50AQI
58AQI
62AQI
67AQI
75AQI
50AQI
66AQI
59AQI
40AQI
57AQI
56AQI
56AQI
48AQI
46AQI
53AQI
63AQI
56AQI
53AQI
53AQI
53AQI
47AQI
51AQI
51AQI
50AQI
58AQI
38AQI
52AQI
64AQI
67AQI
73AQI
69AQI
54AQI
46AQI
45AQI
60AQI
57AQI
40AQI
42AQI
45AQI
58AQI
52AQI
48AQI
64AQI
69AQI
71AQI
78AQI
83AQI
83AQI
88AQI
90AQI
75AQI
61AQI
54AQI
59AQI
63AQI
61AQI
62AQI
55AQI
56AQI
60AQI
65AQI
52AQI
61AQI
64AQI
64AQI
65AQI
62AQI
51AQI
47AQI
41AQI
48AQI
50AQI
46AQI
63AQI
60AQI
57AQI
49AQI
47AQI
47AQI
51AQI
57AQI
56AQI
52AQI
52AQI
55AQI
61AQI
54AQI
55AQI
56AQI
56AQI
61AQI
58AQI
49AQI
56AQI
50AQI
49AQI
36AQI
48AQI
39AQI
39AQI
46AQI
56AQI
60AQI
45AQI
41AQI
52AQI
53AQI
50AQI
53AQI
56AQI
60AQI
59AQI
54AQI
51AQI
52AQI
51AQI
47AQI
52AQI
48AQI
53AQI
45AQI
40AQI
38AQI
38AQI
37AQI
42AQI
50AQI
48AQI
48AQI
46AQI
46AQI
48AQI
48AQI
43AQI
42AQI
47AQI
50AQI
42AQI
43AQI
46AQI
37AQI
44AQI
48AQI
44AQI
45AQI
38AQI
40AQI
44AQI
40AQI
43AQI
44AQI
41AQI
38AQI
38AQI
38AQI
36AQI
34AQI
67AQI
54AQI
76AQI
63AQI
57AQI
59AQI
51AQI
47AQI
41AQI
No. of days
202558AQI
Highest AQI recorded in
March76AQI
Lowest AQI recorded in
September41AQI
202455AQI
Highest AQI recorded in
February68AQI
Lowest AQI recorded in
July32AQI
202365AQI
Highest AQI recorded in
February93AQI
Lowest AQI recorded in
September46AQI
202268AQI
Highest AQI recorded in
February83AQI
Lowest AQI recorded in
June50AQI
202163AQI
Highest AQI recorded in
March97AQI
Lowest AQI recorded in
September39AQI
202062AQI
Highest AQI recorded in
June79AQI
Lowest AQI recorded in
September46AQI
Most & Least Polluted Years Over the Last 6 Years
Yeonji Dong's annual 2025 AQI (58) shows an average percentage change of -6.2% (improved AQI) compared to previous years: 2020 (62), 2021 (63), 2022 (68), 2023 (65), 2024 (55).